Eclipse Solve Ctrl Space Auto Complete Not Working

I have installed Eclipse Editor in Virtual Machine. But, when I try to use Auto Complete method by press Ctrl Space keyboard button, that method not working. I dont have this problem in my other installed Eclipse (Windows version and non Virtual Machine Version).

This problem related with the button shortcut (Ctrl Space) has been used by ibus. We can solve this problem from command prompt. Use below steps to solve this problem :

My name is Toto Sugito. This is my notes when I try something. Maybe, this is NOT THE BEST SOLUTION for your problems. If you have other method or idea that better with my post, please share in this blog. Thank for visiting my site.